package com.example.chatper07;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/CircleServlet")
public class CircleServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String radiusParam = request.getParameter("radius");
        double radius = Double.parseDouble(radiusParam);

        Circle circle = new Circle();
        circle.setRadius(radius);

        double area = circle.getArea();

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("Circle Area is: " + area);
    }

    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        doGet(req, resp);
    }
}
